Matt W.
Yelp
This is a right-sized museum, in that it's in that sweet spot that it's big enough to have decent hours and amenities and a very nice collection, but not so big or centrally-located that it is ever that crowded even during its busiest season. With the recent additions and expansion of the grounds, the little complex is starting to offer reasons for return visits other than the impressionist masters.
I don't know that the architecture of the expansion is horribly successful, though, and there are some badly thought-out bits. Notably, the ADA compliance, which may be technically legal but it's not great. The giant doors are hard to handle, and the access buttons for automated doors aren't marked properly nor are they in the right place - the arc of the door would interfere with a chair, especially a full body chair, when the button is pressed from one. (This extends to odd choices like the triangular carpet piece jutting out onto the wood floor on the lower level.) It's full on high-art museumish and they didn't think out the flow very well; moving from the old to the new is like traveling in a space station air lock.
The curation on the collection is also curiously out of date, very much in the traditional formalistic great art vein, and without the appropriate modern take. I'll give one example that bugged the hell out of me. In one gallery are two works, both attributed to (different) unknown artists. One is a portrait of a young man, holding what looks like a pen. It is titled "Portrait of an Artist". Another is a larger, more complete and complex work, showing a woman sketching (actually doing art) a landscape which is rendered in detail in oil. She, however, is identified as "Woman Sketching". I hope I don't have to explain the oddity of that difference in titling and the explanation on the labels.
There's a lot more I could get into about the traditional organization of the collection (reorganized or not) and its limitations in the main old house space, but it does have quite a number of impressionist masterpieces and a variety of first through fourth rate practitioners of it. The other eras represented in the collection are spotty but there's enough that it's likely there will be something of interest for you.
But, bottom line, for a regional smaller museum, it's pretty solid, although it's not a world class destination museum by any means. Worth a day, and if you plan that day right you can enjoy the hiking trails, which are nice and should probably get their own write-up.